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产品分布
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  product profile
    Most domestic factories produce ethanolamines from low concentration aqueous ammonia and ethylene oxide. Large volume of recycling aqueous ammonia, slow reaction rate and difficult control of the product profile are main disadvantages.
    国内乙醇胺生产大多采用低温低浓度氨水和环氧乙烷进行反应,反应体系中氨和水的循环量大、反应速度慢、不能按市场要求控制产品分布
短句来源
    Most domestic factories produce ethanolamines from low concentration aqueous ammonia and ethylene oxide. Large volume of recycling aqueous ammonia, slow reaction rate and difficult control of the product profile are main disadvantages.
    国内乙醇胺生产大多采用低温低浓度氨水和环氧乙烷进行反应,反应体系中氨和水的循环量大、反应速度慢、不能按市场要求控制产品分布
  “产品分布”译为未确定词的双语例句
    The addition of LOSA-1 had little effect on the distribution of product, the quality of gasoilen and the process capability of oil.
    加入LOSA-1对产品分布、汽油质量及装置的加工能力影响不大。
短句来源
    Under the optimized reaction parameters, the distribution index of the ethoxylate could reach 80%, and the unreacfed alcohol .
    实验表明,在适宜的催化体系和反应条件下合成的(?) =9的醇醚产品,分布指数可达80%,原料醇含量可在3%。
短句来源
    USY zeolite or USY+ZSM-5 zeolites or USY+β zeolites or USY+ZSM-5+β zeolites were used as the active components to make catalysts. The effects of adding β-zeolite on the performances of cracking catalysts were evaluated with micro-reactor method. The effects of β-zeolite on the yield of coke,yield of olefins,composition and RON of gasoline obtained etc were comprehensively analyzed with different methods.
    考察了裂化催化剂中引入 β沸石对催化活性和产品分布的影响 ,对USY沸石与ZSM -5、β沸石两种或多种沸石复配作为活性组分的裂化催化剂进行了较全面的评价和比较。
短句来源
    The tendency of developing the technology of producing ethanolamines in China is to adjust the product layout by means of modifying the process,developing new catalysts with high efficiency and converting among different ethanolamines,so as to improve the product quality and lower the energy consumption.
    指出今后开发乙醇胺生产工艺的发展方向为:通过改进流程、开发新型高效催化剂以及实现不同乙醇胺产品之间的转化等措施来改善产品分布,同时提高产品质量及降低能耗。
短句来源
    It was shown that the charge property and concentration of surfactant, and the concentration of protein being refolded are major parameters determining the success of refolding process.
    表面活性剂带电性质、表面活性剂与蛋白质的摩尔比以及变性蛋白质的浓度等是影响复性率及复性产品分布的主要因素.
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  product profile
Markers have been accredited with a quality score on a scale of 1-5 which describes the complexity of the amplification product profile from each primer pair.
      
It was found that Zymomonas produced fewer by-products than Saccharomyces and that the by-product profile was different.
      
The acidophilic, thermostable α-amylase of Bacillus caldovelox displays a unique end-product profile and action pattern on starch.
      
When the glucose concentration was reduced the population showed a mixed product profile with half of the glucose being fermented to lactate, the remainder to formate, acetate, ethanol and 2,3-butanediol.
      
The pH of the medium was shown to strongly influence the product profile from citrate, presumably by affecting the activity of the key enzymes of pyruvate metabolism.
      
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To both Once-Through and Extinction Recycle operation schemes,their profit models were achieved by using empirical product distribution model respectively: (?) The optimal single-pass conversion and product distribution were obtained through process opti- mazation.The coordinative production with successive processes would reduce HC process own ben- efit potential.

本文按经验产品分布关系对液化石油气、石脑油、航空煤油及柴油的收率作归一化处理,得到全循环和一次通过加氢裂化过程的利润模型:并以利润为目标对操作过程进行了优化,得出了过程最佳单程转化率以及相应的最佳产品分布。文中海讨论了后续工程配套生产对加弗裂化运行经济性能的影响。

Raney Cu-Co catalysts of different Cu/Co ratios have been tested for COhydrogenation under 563K , 6MPa , and H_2/CO=2. The products formed on Raney Cu-Cocatalysts are mainly C_1-C_6 normal alcohols and C_1-C_8 hydrocarbons. The productdistribution follows Schulz-Flory equation. The chain growth factor for alcohols(0.3-0.55 ) is less than that for hydrocarbons ( 0.6-0. 75 ). Before reaching a stable zone, theactivities of all the catalysts pass through a fluctuating zone, and catalysts with higher Cu/Co ratio...

Raney Cu-Co catalysts of different Cu/Co ratios have been tested for COhydrogenation under 563K , 6MPa , and H_2/CO=2. The products formed on Raney Cu-Cocatalysts are mainly C_1-C_6 normal alcohols and C_1-C_8 hydrocarbons. The productdistribution follows Schulz-Flory equation. The chain growth factor for alcohols(0.3-0.55 ) is less than that for hydrocarbons ( 0.6-0. 75 ). Before reaching a stable zone, theactivities of all the catalysts pass through a fluctuating zone, and catalysts with higher Cu/Co ratio can reach the stable zone more quickly. At Cu/Co=0.3-1.5(atomic ratio), thealcohol yield on Raney Cu-Co catalysts is apparently higher than that on coprecipitated Cu-Co catalysts; At Cu/Co=0.8(atomic ratio) , the stable alcohol yield on Raney Cu-Cocatalysts reaches 0. 57g·g ̄(-1)·h ̄(-1).

本文在563K、6MPa及H_2/CO=2的条件下,考察了Cu/Co比不同的几个RaneyCu-Co催化剂的反应性能。结果表明:RaneyCu-Co催化剂上CO加氢产物主要为C_1-C_6正构醇及C_1-C_8正构烃。烃和醇产品的分布均符合Schulz-Flory方程。但醇产品的链增长几率(0.3-0.55)均小于烃产品的值(0.6-0.75)。Cu/Co比不同的催化剂在进入活性稳定区之前,均经过了一个不尽相同的活性波动区,活性趋于稳定所需时间随Cu/Co比增大而缩短。Cu/Co=0.3-1.5(原子比)时,就醇收率而言,RaneyCu-Co催化剂明显高于共沉淀Cu-Co催化剂,Cu/Co=0.8(原子比)时,稳定醇收率达0.57g·g ̄(-1)·h ̄(-1)。

The reaction product distribution of n-C_6 and methyl cyclopentane(MCP)on a series of Pt-catalysts with different basic supports at different temperatures have been studied.Resu- Its show:(1)product distribution is correlative with reaction temperature. (2)The effect of zeolites channel appears only at about 500℃.(3)Aromatization activity and selectivity of paraffin over Pt/AlPO_4-5 are lowered because AlPO_4-5 is nonbasic,and its product distribution is apparently different from that of basic support catalysts....

The reaction product distribution of n-C_6 and methyl cyclopentane(MCP)on a series of Pt-catalysts with different basic supports at different temperatures have been studied.Resu- Its show:(1)product distribution is correlative with reaction temperature. (2)The effect of zeolites channel appears only at about 500℃.(3)Aromatization activity and selectivity of paraffin over Pt/AlPO_4-5 are lowered because AlPO_4-5 is nonbasic,and its product distribution is apparently different from that of basic support catalysts.

在相同铂含量、不同碱性载体Pt/K-L,Pt/AlPO_4-5催化剂上,以下已烷和甲基环戊烷反应分为探针,考察不同反应温度下,n-C_6和MCP的反应产品分布。试验结果表明:(1)反应产品分布与反应温度有密切关系;(2)催化剂中碱性分子筛体孔道效应高温时表现更加充分;(3)出于AlPO_45载体呈中性,铂在其上分散较差,在高温时与碱性载体相比,烷烃芳构化活性、选择降低,反应产物分布也有时显差异。

 
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